Finance
401(k) Calculator
Use this 401(k) calculator to estimate how employee contributions, employer matching, and long-term growth assumptions may affect a workplace retirement account over time. It is designed for educational planning and rough comparisons, not for investment or tax advice.
Projected 401(k) balance
$1,480,623.07
Projection assumes monthly contributions and monthly compounding over 25 years.
Estimate only. Real 401(k) outcomes depend on contribution limits, plan fees, vesting, investment returns, taxes, and plan-specific rules.
Annual employee contribution
$11,000.00
Annual employer match
$3,300.00
Monthly total contribution
$1,191.67
Estimated growth
$1,033,123.07
How this calculator works
This calculator starts with current balance, annual salary, employee contribution rate, employer match assumptions, expected annual return, and years until retirement. It converts contribution inputs into a monthly saving stream, then projects growth using monthly compounding.
Because employer matching can meaningfully change the pace of accumulation, the tool separates employee contributions from match amounts. It pairs naturally with the guides on 401(k) vs. IRA and how much should I save for retirement.
What the result means
The projected balance is a simplified estimate of what the account may grow to if contributions, match, and return assumptions remain consistent. The result grid breaks out annual employee contributions, employer match, and estimated long-term growth so you can see where the projection is coming from.
This makes the calculator especially helpful for comparison questions: How much does the match matter? What happens if the contribution rate rises? How different does a longer time horizon look?
Important limitations
The estimate is intentionally simplified. It does not model plan fees, contribution limits, vesting schedules, investment menu quality, taxes, or changing salary over time unless you approximate those effects yourself through the inputs.
Results are estimates only. Real retirement outcomes depend on savings behavior, market returns, job changes, and planning decisions that no general calculator can fully predict.
When to use this calculator
Use this calculator when you want to compare 401(k) contribution strategies, understand the value of an employer match, or estimate whether your current pace looks aligned with your broader retirement goals.
Strong companion resources are retirement calculator, IRA calculator, retirement savings by age, and the retirement hub.
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FAQs
Does this 401(k) calculator include an employer match?
Yes. The calculator includes a simplified employer match model based on the match rate and salary cap percentage you enter.
Does it account for vesting or plan fees?
No. This is a simplified projection and does not model vesting schedules, fee drag, or plan-specific rules.
Can I use it to compare contribution rates?
Yes. It is especially useful for seeing how different employee contribution rates and employer match levels may change long-term results.
Are the results guaranteed?
No. The results are estimates only and depend heavily on future returns, contributions, and real-world account conditions.
Is this financial advice?
No. This tool is educational only and not individualized financial, investment, or tax advice.